MissingPluginException(No implementation found for method takeScreenshot on channel com.pichillilorenzo/flutter_inappwebview_4)

[aykutuludag]

Is there an existing issue for this?

• I have searched the existing issues

Current Behavior

I am getting error while trying to get screenshot of inappwebview on some devices. I didn't get any error on my devices.

Expected Behavior

Working perfectly.

Steps with code example to reproduce

Steps with code example to reproduce

I am trying to get screenshot of my app. I am trying to do with screenshot plugin, but webview content is not showing that screenshot. So I 'm getting screenshot of inappwebview and combine them. When following code triggerred error happens:

  Future<void> captureAndShare() async {
    Uint8List? webScreenshot = await webViewController?.takeScreenshot();
    if (webScreenshot == null) {
      print("WebView screenshot failed.");
      return;
    }

    Uint8List? flutterScreenshot = await screenshotController.capture();
    if (flutterScreenshot == null) {
      print("Flutter widget screenshot failed.");
      return;
    }
    
    img.Image webImg = img.decodeImage(webScreenshot)!;
    img.Image flutterImg = img.decodeImage(flutterScreenshot)!;
    
    int offsetX = (flutterImg.width - webImg.width) ~/ 2;
    int offsetY = (flutterImg.height - webImg.height) ~/ 2 - (flutterImg.height ~/ 10);
    
    img.Image combinedImage = img.Image(width: flutterImg.width, height: flutterImg.height);
    
    combinedImage = img.compositeImage(
      combinedImage,
      flutterImg,
      dstX: 0,
      dstY: 0,
    );
    
    combinedImage = img.compositeImage(
      combinedImage,
      webImg,
      dstX: offsetX,
      dstY: offsetY,
    );
    
    Uint8List finalImageBytes = Uint8List.fromList(img.encodePng(combinedImage));
    
    final tempDir = await getTemporaryDirectory();
    final file = File('${tempDir.path}/screenshot.png');
    await file.writeAsBytes(finalImageBytes);
    
    Share.shareXFiles([XFile(file.path)], text: promoteText);
  }

This code is using for getting screenshot.png by using screenshot plugin and webViewController?.takeScreenshot() method then combine them and share. Exception happened in this line:

Uint8List? webScreenshot = await webViewController?.takeScreenshot();

Stacktrace/Logs

Stacktrace/Logs

Fatal Exception: io.flutter.plugins.firebase.crashlytics.FlutterError
MissingPluginException(No implementation found for method takeScreenshot on channel com.pichillilorenzo/flutter_inappwebview_4)

Fatal Exception: io.flutter.plugins.firebase.crashlytics.FlutterError: MissingPluginException(No implementation found for method takeScreenshot on channel com.pichillilorenzo/flutter_inappwebview_4)
       at MethodChannel._invokeMethod(platform_channel.dart:368)
       at AndroidInAppWebViewController.takeScreenshot(in_app_webview_controller.dart:2013)
       at MyCodeState.captureAndShare(my_code.dart:117)
        

Flutter version

v3.29.0

Operating System, Device-specific and/or Tool

Android

Plugin version

v6.1.5

Additional information

Self grab

• I'm ready to work on this issue!